Futuristic Fortress in Pittsburgh, PA

Fusing plenty of function with its ultra-futuristic form, this first-of-its-kind construction, known as a yaca-dome, was built in 1969 to withstand earthquakes and hurricanes up to 250 miles per hour. Decades later, this three-bedroom Pittsburgh property continues to attract visitors thanks to its curved exterior beams, vintage furnishings, and circular windows that provide a crystal-clear view into the scenic surrounding woods.